【長崎スタジアムシティ】4 acts including ATARASHII GAKKO! announced to perform; second-anniversary music festival to be held on 17 October

長崎スタジアムシティ announced that it will hold the music festival HAPPINESS JAM 2026 on 17 October to commemorate the second anniversary of its opening. The venue will be HAPPINESS ARENA, with 4 acts, including ATARASHII GAKKO!, scheduled to perform.

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The story

長崎スタジアムシティ announced that it will hold the music festival HAPPINESS JAM 2026 to commemorate the second anniversary of its opening. The event will be held on Saturday, 17 October 2026, at HAPPINESS ARENA within the stadium city.

The 4 announced performing artists are ATARASHII GAKKO!, Wednesday Campanella, Klang Ruler and SWEET STEADY.

Ticket sales information and details of the event are expected to be announced in due course, with specific operational information to be made public at a later date.

At a glance

Business partnersEvent information announced by 長崎スタジアムシティ

TimingAnnounced that the event will be held on 17 October 2026

VenueHAPPINESS ARENA announced as the venue

TypeAnnouncement of a music festival commemorating the second anniversary of its opening

Featuring4 acts, including ATARASHII GAKKO!, scheduled to perform

InformationTicket sales and other details to be announced later

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